Can anybody help with info on wiring and configuring the Discov3ry for use with the Wanhao Duplicator 4S? I have two of the Discov3ry paste extruders which I purchased last year and cannot get them to work. When wired a instructed for a Mighty Board, all the stepping motor does is sit there and make noise without indexing. There doesn't seem to be a complete treatment anywhere on the forum to get it running on the Mighty Board short of a video which mentions creating a add in circuit to change how the stepper driver functions. Is there a troubleshooting guide anywhere that lists noises, symptoms, test points, or things to try?